A development of rolling bearings with 10nm level in non-repetitive run-out

开发出10nm级非重复跳动的滚动轴承

• 批准号: 15560120
• 负责人: NOGUCHI Shoji
• 金额: $ 1.98万
• 依托单位: Tokyo University of Science
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15560120/
• 关键词: rolling bearing; NRRO; lubrication fluctuation; rotational accuracy; ball; cage; 回転非同期振れ; 潤滑剤; 保持器回転周期振れ; NRRO; 回転精度測定; 保持器公転周期振れ; ナノメータ

In this research, the fundamental research was accomplished for a development of rolling bearings with 10 nm level in non-repetitive run-out. The results are summarized as follows ;(1)The non repetitive run-out(NRRO) value of the components of cage rotation is mainly caused by the diameter differences of balls contained in one bearing. But in case of measuring NRRO for a long time, it was often observed that the NRRO of retainer rotation fluctuated suddenly. As for this phenomenon, geometric errors were not regarded as a cause. In this research, we produced the instrument which could let a lubrication state change intentionally and investigated the influence of lubrication fluctuation on the NRRO of retainer rotation. It was cleared that the lubrication fluctuation was the cause of the change of the NRRO of retainer rotation in nm level.(2)The NRRO of rotational frequency of the cage is mainly caused by the diameter differences of balls contained in one bearing. In addition, it was kno … More wn that the unequal orbital intervals of balls could influence the NRRO of rotational frequency of the cage. But there were few quantitative studies about this. In this research, we investigated the influence of the unequal orbital intervals of balls on the NRRO of retainer rotation by pulling out balls intentionally. It was clarified that the NRRO of rotational frequency of the cage became large if the difference between orbital intervals of balls was large.(3)The NRRO value of retainer revolution is caused mainly by the diameter differences of balls mounted in a bearing. Additionally, when more than one ball has diameter difference, the NRRO value of retainer revolution is believed to vary with the location of balls. In this research, we theoretically analyzed the NRRO value of retainer revolution considering the diameter differences and location of balls mounted in a bearing. Consequently, it is clarified that the mean value of the retainer revolution component calculated in all locations of balls decreased with increasing number of balls in a rolling bearing. Less

在本研究中，完成了10 nm级非重复跳动滚动轴承的基础研究。结果总结如下：(1)保持架旋转部件的非重复跳动（NRRO）值主要是由一个轴承中包含的球的直径差异引起的。但在长时间的NRRO测量中，经常观察到保持位旋转的NRRO出现突然波动。对于这种现象，几何误差并没有被认为是原因之一。在本研究中，我们制作了一种可以有意改变润滑状态的仪器，并研究了润滑波动对保持器旋转的NRRO的影响。结果表明，在纳米水平上，润滑波动是保持器旋转NRRO变化的原因。(2)保持架转动频率的NRRO主要是由一个轴承内所含球的直径差异引起的。此外，还发现球的轨道间距不等会影响笼旋转频率的NRRO。但很少有关于这方面的定量研究。在本研究中，我们研究了球的不均匀轨道间隔对保持器旋转的NRRO的影响。结果表明，当球的轨道间距差较大时，保持架旋转频率的NRRO变大。(3)保持圈转数的NRRO值主要是由安装在轴承上的球的直径差异引起的。此外，当多个球存在直径差时，保持器转数的NRRO值会随着球的位置而变化。在本研究中，我们从理论上分析了考虑滚珠直径差异和安装在轴承上的位置的保持圈转数的NRRO值。因此，澄清了在球的所有位置计算的保持圈转分量的平均值随着滚动轴承中球的数量的增加而减少。少

项目成果

The influence of the unequal orbital intervals of balls on the NRRO of rotational frequency of the cage in a ball bearing

• 发表时间: 2005-03
• 期刊: Japanese journal of tribology
• 作者: S. Noguchi;Sayaka Obinata;Yukie Saito;Yoshinobu Akamatsu;Tomoya Sakaguchi

玉軸受の保持器回転周期振れに及ぼす転動体不等配の影響

滚动体分布不均匀对球轴承保持架旋转周期跳动的影响

• 发表时间: 2005
• 期刊: トライボロジスト 50
• 作者: 野口昭治;大日方清香;齋藤雪絵;赤松良信;坂口智也
• 通讯作者: 坂口智也

The influence of location of balls and ball diameter difference in rolling bearings on the nonrepetitive runout (NRRO) of retainer revolution

• DOI: 10.1016/j.precisioneng.2004.03.003
• 发表时间: 2005-01-01
• 期刊: PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
• 影响因子: 3.6
• 作者: Noguchi, S;Hiruma, K;Kanada, T
• 通讯作者: Kanada, T

玉軸受の保持器回転周期振れに及ぼす潤滑変動の影響

润滑波动对球轴承保持架旋转周期跳动的影响

• 发表时间: 2004
• 期刊: トライボロジスト 49
• 作者: 野口昭治;上原勇紀
• 通讯作者: 上原勇紀

The influence of Lubrication Fluctuation on the NRRO of the Components of Retainer Rotation in a Ball Bearing

润滑波动对球轴承保持架旋转部件NRRO的影响

• 发表时间: 2004
• 期刊: Journal of Japanese Society of Tribologists Vol.49
• 作者: Shoji Noguchi;Yuuki Uehara
• 通讯作者: Yuuki Uehara